Rossow, I., & Bramness, J. G. (2015). The total sale of prescription drugs with an abuse potential predicts the number of excessive users: a national prescription database study. BMC Public Health, 15, 288.

Nordfjaern, T. (2013). Prospective associations between benzodiazepine use and later life satisfaction, somatic pain and psychological health among the elderly. Human Psychopharmacology, 28(3), 248-257.